Wickandfeederick j



(No Model.)

B. M. SOUTHWIGK 85 F. J. MOHR.

TOR.

No. 510,998, Patented Dec. 19, 1893. y

UNITED STATES ATENT twins.

EDW'ARD M. SOUTHNIOK AND FREDERICK J. MOHR, OF XVORC-ESTER, MASSACHUSETTS.

TOP.

SPECIFICATION forming part of Letters Patent No. 510,998, dated December 19, 1893. Application filed June 4, 1892. Serial No. 435,570. (No model.)

To aZZ whom it may concern.-

Be it known that we, EDWARD M. Scorn- WICK and FREDERICK J. Mona, citizens of the United States, residing at Worcester, in the county of W'orcester and State of Massachusetts, have invented a new and useful Improvement in Tops, of which the following is a specification, reference being had to the accompanying drawings, representing a top embodying our improvement and forminga part of this specification, and in which- Figure 1 is a view of our improved top. Fig. 2 is a top view of the rotating disk. Fig. 3 is a sectional view of the rotating disk on line 3, 3, Fig. 2. Fig. 4. is a sectional view of the spiral spindle on line 4, 4., Fig. 1. Fig. 5 is an enlarged view of the lower end of the spiral spindle and detachable tip and Fig. 6 is a central sectional view of the end of the spindie and detachable tip.

Similar letters refer to similar parts in the difierent figures.

Our invention relates to that class of tops, which embody a weighted rotating disk arranged to be pushed on? the end of a spindle by which a rapid rotary motion is imparted to the disk and it consists in providing a detachable tip upon the spindle, which is taken by the rotating disk as it is delivered from the spindle, and forms a tip upon which the top spins.

In the accompanying drawings, A denotes a rotating disk of metal provided with ahub A and having a central hole A inclosing a spindle B provided with a spiral thread B. The upper end of the hole A is made square as shown at A to fit the spiral thread B, the size of the square hole A being the same as the rectangle inclosin g the tips of the threads in cross section, as shown in Fig. 4., preventing the disk A from turning upon the spindle B, except when it is moved longitudinally upon the spindle when a rotary motion will be imparted to the disk by the spiral threads B. A wooden sleeve 0 capable of sliding along the spindle B is placed above the disk A by which the disk A is pushed down the spindle, causing it to be rotated a complete revolution for every turn of the spiral thread and causing a rapid rotary motion to be imparted to the disk asit is pushed 0d the lower end of the spindle. The lower end of the spindle is made smooth for a distance slightly greater than the length of the disk A and hub A as at B and the extreme end of the spindle is made slightly tapering at B to receive the metallic tip D, which has a tapering hole D fitting closely upon the end of the spindle. The outside of the tip D is made tapering in the opposite direction to the central hole as at D to fit closely the tapering hole A in the hub A of the metallic disk A.

In order to spin the top, the disk A and sleeve 0 are placed upon the spindle in the position sh own in Fig. 1. The tip D is placed upon the tapering end B of the spindle upon which it is driven so as to fit closely and not be readily removed except by the force of the metallic disk A as it is pushed downward upon the spindle Bi The operator holds the spindle by the ring B and with the other hand pushes down the sleeve 0, forcing the disk A, along the spiral thread B, which is engaged by the square section A of the hole through the disk, so as to cause a rotary motion to be imparted to the disk by its longitudinal movement along the spindle. When the disk reaches the lower end of the spindle the taperin g hole A incloses the tapering side D of the tip D, causing the tip to be removed from the spindle and firmly held within the hub A in the position shown in Fig. 2 forming a tip upon which the top is supported while spinning. hen the tip D is transferred from the hub A to the end of the spindle B the smooth section B allows a longitudinal movement of the disk on the spindle without causing it to rotate.

\Ve are aware that tops, having a weighted disk, which are rotated by being forced along a spirally threaded spindle have been in use heretofore and we do not claim such as our invention; but

What we do claim as our invention, and desire to secure by Letters Patent, is-

1. In a top, the combination with a rotating disk and a spirally threaded spindle carrying said disk, of a detachable tip held on the end of said spindle and arranged to be removed therefrom by the longitudinal movement of spindle B having a spirally threaded section B engaged by said disk and a tip D held on the end of said spindle and having atapering I 5 outer surface D fitting the tapering hole A substantially as described.

Dated the 31st day of May, 1892.

ED WARD M. SOUTHWICK. FREDERICK J. MOHR.

lVitnesses:

RUFUS B. FOWLER, EMMA KESTER. 

